Add syntax highlighting for Solidity (#1854)

book/src/generated/lang-support.md

@@ -54,7 +54,7 @@
 | ruby | ✓ |  | ✓ | `solargraph` |
 | rust | ✓ | ✓ | ✓ | `rust-analyzer` |
 | scala | ✓ |  | ✓ | `metals` |
-| solidity |  |  |  | `solc` |
+| solidity | ✓ |  |  | `solc` |
 | svelte | ✓ |  | ✓ | `svelteserver` |
 | tablegen | ✓ | ✓ | ✓ |  |
 | toml | ✓ |  |  |  |

languages.toml

@@ -992,10 +992,13 @@ source = { git = "https://github.com/milisims/tree-sitter-org", rev = "1c3eb533a
 [[language]]
 name = "solidity"
 scope = "source.sol"
-injection-regex = "sol"
+injection-regex = "^(sol|solidity)$"
 file-types = ["sol"]
 roots = []
 comment-token = "//"
 indent = { tab-width = 4, unit = "    " }
 language-server = { command = "solc", args = ["--lsp"] }
 
+[[grammar]]
+name = "solidity"
+source = { git = "https://github.com/slinlee/tree-sitter-solidity", rev = "f3a002274744e859bf64cf3524985f8c31ea84fd" }

runtime/queries/solidity/highlights.scm

@@ -0,0 +1,189 @@
+(comment) @comment
+
+; Pragma
+(pragma_directive) @tag
+(solidity_version_comparison_operator ">=" @tag)
+(solidity_version_comparison_operator "<=" @tag)
+(solidity_version_comparison_operator "=" @tag)
+(solidity_version_comparison_operator "~" @tag)
+(solidity_version_comparison_operator "^" @tag)
+
+
+; Literals
+[
+ (string)
+ (hex_string_literal)
+ (unicode_string_literal)
+ (yul_string_literal)
+] @string
+[
+ (number_literal)
+ (yul_decimal_number)
+ (yul_hex_number)
+] @constant.numeric
+[
+ (true)
+ (false)
+] @constant.builtin
+
+
+; Type
+(type_name) @type
+(primitive_type) @type
+(struct_declaration struct_name: (identifier) @type)
+(enum_declaration enum_type_name: (identifier) @type)
+; Color payable in payable address conversion as type and not as keyword
+(payable_conversion_expression "payable" @type)
+(emit_statement . (identifier) @type)
+; Handles ContractA, ContractB in function foo() override(ContractA, contractB) {}
+(override_specifier (identifier) @type)
+; Ensures that delimiters in mapping( ... => .. ) are not colored like types
+(type_name "(" @punctuation.bracket "=>" @punctuation.delimiter ")" @punctuation.bracket)
+
+
+
+; Functions and parameters
+
+(function_definition
+  function_name:  (identifier) @function)
+(modifier_definition
+  name:  (identifier) @function)
+(yul_evm_builtin) @function.builtin
+
+; Use contructor coloring for special functions
+(constructor_definition "constructor" @constructor)
+(fallback_receive_definition "receive" @constructor)
+(fallback_receive_definition "fallback" @constructor)
+
+(modifier_invocation (identifier) @function)
+
+; Handles expressions like structVariable.g();
+(call_expression . (member_expression (property_identifier) @function.method))
+
+; Handles expressions like g();
+(call_expression . (identifier) @function)
+
+; Function parameters
+(event_paramater name: (identifier) @variable.parameter)
+(function_definition
+  function_name:  (identifier) @variable.parameter)
+
+; Yul functions
+(yul_function_call function: (yul_identifier) @function)
+
+; Yul function parameters
+(yul_function_definition . (yul_identifier) @function (yul_identifier) @variable.parameter)
+
+(meta_type_expression "type" @keyword)
+
+(member_expression (property_identifier) @variable.other.member)
+(property_identifier) @variable.other.member
+(struct_expression ((identifier) @variable.other.member . ":"))
+(enum_value) @variable.other.member
+
+
+; Keywords
+[
+ "pragma"
+ "import"
+ "contract"
+ "interface"
+ "library"
+ "is"
+ "struct"
+ "enum"
+ "event"
+ "using"
+ "assembly"
+ "switch"
+ "case"
+ "default"
+ "break"
+ "continue"
+ "if"
+ "else"
+ "for"
+ "while"
+ "do"
+ "try"
+ "catch"
+ "return"
+ "emit"
+ "public"
+ "internal"
+ "private"
+ "external"
+ "pure"
+ "view"
+ "payable"
+ "modifier"
+ "returns"
+ "memory"
+ "storage"
+ "calldata"
+ "function"
+ "var"
+ (constant)
+ (virtual)
+ (override_specifier)
+ (yul_leave)
+] @keyword
+
+(import_directive "as" @keyword)
+(import_directive "from" @keyword)
+(event_paramater "indexed" @keyword)
+
+; Punctuation
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+]  @punctuation.bracket
+
+
+[
+  "."
+  ","
+] @punctuation.delimiter
+
+
+; Operators
+
+[
+  "&&"
+  "||"
+  ">>"
+  ">>>"
+  "<<"
+  "&"
+  "^"
+  "|"
+  "+"
+  "-"
+  "*"
+  "/"
+  "%"
+  "**"
+  "<"
+  "<="
+  "=="
+  "!="
+  "!=="
+  ">="
+  ">"
+  "!"
+  "~"
+  "-"
+  "+"
+  "delete"
+  "new"
+  "++"
+  "--"
+] @operator
+
+(identifier) @variable
+(yul_identifier) @variable